<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="button" name="github-login" value ="github-login"
       th:onclick="'window.location.href=' + ${github}"/>

<h1>LoginTest</h1>
<p th:text="'url=' + ${github} " />

</body>
</html>